Manufacture of sandals



May 30, 1939. w BAlN 2,160,377

MANUFACTURE OF SANDALS Filed Oct. 12, 1937 2 Sheets-Sheet 1 lflv mloz"42 J9 X; May 30, 1939. I w. H. BAIN 2,160,377

MANUFACTURE OF SANDALS Filed Oct. 12, 1937 2 Sheets-Sheet 2 [nveniorZ/fia... 7% 6M Patented May 30,1939 2,160,377

UNITED-STATES PATENT OFFICE 2,160,377 MANUFACTURE OF SANDALS WilliamHenry Bain, Lewiston, Maine Application October 12, 1937, Serial No.168,616 5 Claims. 12-442) This invention consists in a novel 'method ofemployed with good advantage, all as shown in manufacturing sandals ofimproved construction the accompanying drawings in which, and attractiveappearance, embodying also an Figs. 1 to 4 are fragmentary views inperspecinsole of new and improved construction. The tive of four insoleshaving somewhat different 5 invention also includes within its scope thenovel characteristics and all being adapted to be em-' 5 strap sandalherein shown as produced by the bodied in the sandal of my invention,and method of my invention. Fig. 5 is a view in perspective of the shankand In the manufacture of'strap sandals as heretoforepart of a sandalmade with an insole of still fore carried out, much difficulty has beenendifferent characteristics.

countered in securely attaching the strap ends The characteristic commonto all the insoles 10 in the sandal bottom without the necessity forherein illustrated is the reinforcing sheet which exterwive hand fittingwork on the part of an covers the last-engaging face thereof and whichpert shoemaker. This is particularly t ue is adapted to be stripped fromthe insole, after where it is desired to secure the strap ends in thelast has been removed. The sandal straps are flush surface relation tothe surface of the insole temporarily attached to the reinforced body of15 beneath the foot of the wearer. Difliculty has the insole, by beingedge notched into it or otheralso been encountered in so treating theedge of wise, and may be held in assembled position the insole that itshall present an attractive thereon partly through the medium of thereinfinish and not show a raw edge where it is visible forcing sheet andthen, upon the removal of the between the straps along the sides of thesandal. latter, the straps may be conveniently reached 20 he presentinvention aims to obviate these and fastened permanently to the outsoleor other difiiculties and to improve the manufacture of parts of th d lb tt sandal in o her imp rt nt pe s- F r The insole shown in Fig. 1,comprises a. blank ample, t plat s the e pl ym nt f an In extending forthe full length of the sole and insol h v n a t mp rar ly tach d r in rn formed of insole leather or any composition com- 25 sheet, such asthin tough fibre, which may be monly used for such purposes. The blankI0 is made up as a p Of t o e ether With skeletonized in the forepal't,having a large aperh r ps as a st k fi tin perati n so h t it ture Htherein, and is reinforced throughout its comes to the shoemaker as aunit ready to be forepart by a sheet l2 of fibre or the like which isplaced p the last. The reinforcing sheet is temporarily secured theretoin substantially flush 30 arranged 80 that it y be r pped f m t e edgerelation and so as to constitute the lastlasted sandal after the lasthas been pulled and engaging face of the insole. The blank i0 is also inthe meantime it serves to reinforce the insole provided with a series ofrectangular edge notches during the Shoemakihg processes, to permit thei3 which, in this case, extend entirely through use of alight orskeletonized insole and cooperates th m In and so expose t reinforcing ht in p d g a secure attachment of the sandal l2, just as it is exposedthrough the aperture ll. straps y fur s ng ir tly a rfa e f r As hereinshown the whole forepart of the blank tachment or by reinforcing theportion of the H) is reduced by boiling or otherwise back to insole towhich the st aps are connected. substantially the ball line and the rearedge of A o y er ta e the p ythe reinforcing sheet I2 extends rearwardlyof 4p ment of a reinf rc n he f his h r cter p the ball line, asindicated by the dotted lines in mits a binding tape to be secured tothe marginal Fig. 1, edges of the insole in a continuous manner andHaving prepared th ins le a ab e lain d so as to e tend ac ss notchesProvided for the and located the edge notches [3 in accordance receptionof the S p d Under Such c with the style of the sandal desired, sandalstraps 45 stances the reinforcing sheet supplies a surface M areassembled with the insole by having one to which each of the strap endsmay be cemented end of each cemented into the notches l3, in thisindependently o e b nd and us o v te case being temporarily secured tothe reinforcing any displacement of the binding which might sheet l2,which forms the bottom of the notches,

h ve u red during the h m in processes and to the walls of the notches.The insole with 50 These and other features of the invention will itsstraps thus assembled in flush surface relation be best understood andappreciated from the is now ready to be conformed to the last bottomfollowing description of several insoles embodyand secured thereto withits reinforcing sheet I 2 ing the invention and a preferred form ofstrap next to the last.

sandal in which the said novel insoles may be The insole shown in Fig. 2is similar to that 55 above described in many respects. It includes theblank which has a large aperture 2| in its forepart and which extendsfor the full length of the insoles In this case the blank is not reducedin the forepart but is stlfl'ened in the shank portion by a shank pieceand a metallic stiffener 23. The forepart of the blank is provided withrectangular edge notches 23 but these do not extend completely throughthe blank as before. Instead a thin portion of the blank is retained toserve as a bottom for the notches. A reinforcing sheet 22 covers thelower face of the insole, as seen in Fig. 2, and this is exposed throughthe aperture 2!. It underlies the notches 23 but is not visible at thesepoints. The sandal straps 24 are-assembled with the insole by having oneend of each cemented into the notches 23 in substantially flush surfacerelation, and the insole thus made ready for use.

The insole shown in Fig. 3 includes the blank 30, which in this case,may be assumed to be of a fibrous composition and is not skeletonized inits forepart but is solid except for its rectangular edge notches 33. Inthis case the entire margin of the blank is provided with a textilebinding tape 31, folded about its edge and held in place by a line ofstitching. It will be noted that binding 3| extends continuously acrossthe open ends of the notches 33, bridging them as it were. The shankportion of the insole is stiffened and given body by a shank piece 35secured thereto in the usual manner, and the forepart is reinforced by athin tough fibre sheet 32 which is exposed through the notches 33 withinthe binding 3|. Sandal straps 34 are cemented in the notches 33 and thusattached to the binding 3! as well as the face of the reinforcing sheet32,

The insole shown in Fig. 4 has no edge notches but comprises an openblank 40 of textile ma-' terial, such as duck, died out or otherwisefashioned somewhat like a rand and outlining the forepart of the insole.The blank is reinforced by a fibre sheet 4| and permanently attached atits rear end to a shank piece 42. Sandal straps 33 are cemented to theface of the blank 40 in locations predetermined for the style of sandalto be made.

In using any one of the four insoles above described in the manufactureof a sandal of the general type shown in Fig. 5, the insole with itsassembled straps is first tacked to the last bottom with the reinforcingsheet next to the last. The insole H in Fig. 5 is edge notched toreceive the straps and is provided with the reinforcing sheet 35 whichin Fig. 5 is represented as having served its function, and as beingpartially stripped from the insole. The insole unit of Fig. 5 includes ametallic shank stiffener l3 and sole piece 43 having a textile bindingabout its margin and extending approximately from the ball line to theheel seat. While the insole is on the last the straps 46 are drawn overthe last, cut to length and secured at their free ends in theappropriate edge notches. The outsole 41 is also conformed to the sandalbottom and permanently secured in place as by cementing. During all theoperations the strap ends are strongly but temporarily held in place bytheir attachment to the reinforcing sheet itself or to the insolematerial in close proximity to the reinforcing sheet. When the last hasbeen pulled, however. there is no longer any strain upon the straps andno danger of displacing them by stripping oif the reinforcing sheet assuggested in Fig. 5. This operation uncovers the strap ends, presentingthem in convenient reach to be permanently secured by fasteners, such asstaples l3, driven through the straps and clenched in the outsole 41.Thus the manufacturing strains are taken care of by providing theremovable reinforcing sheet and the strains in wear are taken care of bythe permanent fasteners inserted when the reinforcing sheet is removed.

Having thus described my invention, what I claim is new and desire tosecure by United States Letters Patent is,-

1. A method of making sandals, which consists in assembling on a lastbottom an insole blank having straps located in edge notches therein andcovered by a relatively thin reinforcing sheet and an outsole; and then,after removing the last and stripping off the reinforcing sheet andattaching the strap ends to the underlying outsole.

2. A method of making sandals, which consists in securing sandal strapsin edge notches in an insole blank having a relatively thin reinforcingsheet upon its last-engaging face, and after removing the sandal fromthe last stripping the reinforcing sheet to expose the strap ends andsecuring them to an underlying outsole.

3. A method of making sandals, hich consists in cutting spaced notchesin the marginal edges of an insole blank, temporarily attaching a thinreinforcing sheet to the face of the blank so as to underlie saidnotches, locating sandal straps in the notches, conforming the insolewith its straps to a last bottom, attaching an outsole, stripping thereinforcing sheet after removing the last, thus exposing the strap ends,and then permanently securing them to the outsole.

4. A method of making sandals, which consists in cutting spaced notchesin the marginal edges of an insole blank, edge binding the blank acrossthe open ends of the notches, temporarily attaching a thin reinforcingsheet to the face of the blank, locating sandal straps in the notchesabove said reinforcing. sheet and binding, placing the insole upon alast bottom with the reinforcing sheet innermost, attaching an outsole,removing the last, stripping off the reinforcing sheet, thus exposingthe inner ends of the straps. and then permanently securing them to theoutsole.

5. In the manufacture of sandals the steps of edge notching an insole,cementing a thin cover sheet to one surface of said insole below thenotches, cementing to said cover sheet the free ends of straps disposedin said notches, securing an outsole to the surface of the insoleopposite said cover sheet, stripping off said cover sheet, and attachingthe straps to said outsole by inserting fasteners in the ends of thestraps in the notches.

WILLIAM HENRY BAIN.

